b$.$ $$5,480$ credit to Cash is posted twice as two credits to Cash.c$.$ $$2,590$ debit to Prepaid Insurance is posted as a debit to Insurance Expense.d$.$ $$47,950$ debit to Machinery is posted as a debit to Accounts Payable.e$.$ $$6,380$ credit to Services Revenue is posted as a $$638$ credit.f$.$ $$1,780$ debit to Store Supplies is not posted.